EP1339126A3 - Catalytic layer, method for the fabrication thereof and the use of such a catalytic layer in a fuel cell - Google Patents

Catalytic layer, method for the fabrication thereof and the use of such a catalytic layer in a fuel cell Download PDF

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Publication number
EP1339126A3
EP1339126A3 EP03002346A EP03002346A EP1339126A3 EP 1339126 A3 EP1339126 A3 EP 1339126A3 EP 03002346 A EP03002346 A EP 03002346A EP 03002346 A EP03002346 A EP 03002346A EP 1339126 A3 EP1339126 A3 EP 1339126A3
Authority
EP
European Patent Office
Prior art keywords
catalytic layer
catalyst
particles
catalyst layer
fabrication
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP03002346A
Other languages
German (de)
French (fr)
Other versions
EP1339126B1 (en
EP1339126A2 (en
Inventor
Andreas Dr. Glüsen
Morten Schonert
Detlef Prof. Dr. Stolten
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Forschungszentrum Juelich GmbH
Original Assignee
Forschungszentrum Juelich GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Forschungszentrum Juelich GmbH filed Critical Forschungszentrum Juelich GmbH
Publication of EP1339126A2 publication Critical patent/EP1339126A2/en
Publication of EP1339126A3 publication Critical patent/EP1339126A3/en
Application granted granted Critical
Publication of EP1339126B1 publication Critical patent/EP1339126B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
    • H01M4/88—Processes of manufacture
    • H01M4/8803—Supports for the deposition of the catalytic active composition
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
    • B01J31/02—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides
    • B01J31/06—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides containing polymers
    • B01J31/08—Ion-exchange resins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/02—Impregnation, coating or precipitation
    • B01J37/0215—Coating
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
    • H01M4/8605—Porous electrodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
    • H01M4/88—Processes of manufacture
    • H01M4/8825—Methods for deposition of the catalytic active composition
    • H01M4/8828—Coating with slurry or ink
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
    • H01M4/88—Processes of manufacture
    • H01M4/8878—Treatment steps after deposition of the catalytic active composition or after shaping of the electrode being free-standing body
    • H01M4/8882—Heat treatment, e.g. drying, baking
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
    • H01M4/96—Carbon-based electrodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/10—Fuel cells with solid electrolytes
    • H01M8/1004—Fuel cells with solid electrolytes characterised by membrane-electrode assemblies [MEA]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
    • B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
    • B01J35/40—
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
    • H01M4/90—Selection of catalytic material
    • H01M4/92—Metals of platinum group
    • H01M4/921—Alloys or mixtures with metallic elements
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/50—Fuel cells

Abstract

Die erfindungsgemäße Katalysatorschicht weist ionenleitfähiges Polymer und reine oder geträgerte Katalysatorteilchen auf. Zusätzlich enthält sie anorganische Feststoffe, die wenigstens doppelt so groß wie die Katalysatorteilchen und kleiner als die Schichtdicke der Katalysatorschicht sind.The catalyst layer according to the invention comprises ion-conductive polymer and pure or supported catalyst particles. In addition, it contains inorganic solids which are at least twice as large as the catalyst particles and smaller than the layer thickness of the catalyst layer.

Diese Katalysatorschicht wird unter anderem durch eine Verfahren hergestellt, bei dem zunächst eine Mischung aus geträgerten Katalysatorteilchen, Ionomer und zusätzlichen anorganischen Feststoffpartikeln in einem Lösungsmittel suspendiert werden. Die Feststoffpartikel weisen eine Größe zwischen 0,1 µm und 100 µm auf und sind wenigstens doppelt so groß wie die eingesetzten Katalysatorteilchen. Diese Suspension wird auf das Substrat aufgebracht und getrocknet. Dabei bildet sich vorteilhaft eine rissfreie erfindungsgemäße Katalysatorschicht aus.This catalyst layer is produced inter alia by a process in which first a mixture of supported catalyst particles, ionomer and additional inorganic solid particles are suspended in a solvent. The solid particles have a size between 0.1 .mu.m and 100 .mu.m and are at least twice as large as the catalyst particles used. This suspension is applied to the substrate and dried. This advantageously forms a crack-free catalyst layer according to the invention.

EP03002346A 2002-02-22 2003-02-04 Catalytic layer, method for the fabrication thereof and the use of such a catalytic layer in a fuel cell Expired - Lifetime EP1339126B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10207617 2002-02-22
DE10207617A DE10207617A1 (en) 2002-02-22 2002-02-22 Catalyst layer, process for producing the same and use of the same in a fuel cell

Publications (3)

Publication Number Publication Date
EP1339126A2 EP1339126A2 (en) 2003-08-27
EP1339126A3 true EP1339126A3 (en) 2007-10-10
EP1339126B1 EP1339126B1 (en) 2010-07-14

Family

ID=27635246

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03002346A Expired - Lifetime EP1339126B1 (en) 2002-02-22 2003-02-04 Catalytic layer, method for the fabrication thereof and the use of such a catalytic layer in a fuel cell

Country Status (3)

Country Link
EP (1) EP1339126B1 (en)
AT (1) ATE474340T1 (en)
DE (2) DE10207617A1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1163479A (en) * 1967-03-17 1969-09-04 Engelhard Min & Chem Fuel Electrodes
US5523181A (en) * 1992-09-25 1996-06-04 Masahiro Watanabe Polymer solid-electrolyte composition and electrochemical cell using the composition
EP0880188A2 (en) * 1997-05-21 1998-11-25 Degussa Aktiengesellschaft CO-tolerant anode catalyst for PEM fuel cell and its method of manufacturing
EP0815606B1 (en) * 1995-03-20 2000-06-07 E.I. Du Pont De Nemours And Company Membranes containing inorganic fillers for fuel cells
US20010028975A1 (en) * 1999-01-22 2001-10-11 California Institute Of Technology Membrane-electrode assemblies for direct methanol fuel cells

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5766787A (en) * 1993-06-18 1998-06-16 Tanaka Kikinzoku Kogyo K.K. Solid polymer electrolyte composition
US5919583A (en) * 1995-03-20 1999-07-06 E. I. Du Pont De Nemours And Company Membranes containing inorganic fillers and membrane and electrode assemblies and electrochemical cells employing same
GB9822576D0 (en) * 1998-10-16 1998-12-09 Johnson Matthey Plc Membrane

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1163479A (en) * 1967-03-17 1969-09-04 Engelhard Min & Chem Fuel Electrodes
US5523181A (en) * 1992-09-25 1996-06-04 Masahiro Watanabe Polymer solid-electrolyte composition and electrochemical cell using the composition
EP0815606B1 (en) * 1995-03-20 2000-06-07 E.I. Du Pont De Nemours And Company Membranes containing inorganic fillers for fuel cells
EP0880188A2 (en) * 1997-05-21 1998-11-25 Degussa Aktiengesellschaft CO-tolerant anode catalyst for PEM fuel cell and its method of manufacturing
US20010028975A1 (en) * 1999-01-22 2001-10-11 California Institute Of Technology Membrane-electrode assemblies for direct methanol fuel cells

Also Published As

Publication number Publication date
DE10207617A1 (en) 2003-09-11
ATE474340T1 (en) 2010-07-15
EP1339126B1 (en) 2010-07-14
DE50312871D1 (en) 2010-08-26
EP1339126A2 (en) 2003-08-27

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